Biology Chapter on Plastids and Chloroplasts

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Questions and Answers

What are chloroplasts primarily responsible for?

  • Colorful pigmentation in flowers
  • Photosynthesis (correct)
  • Food storage
  • None of the above

Plastids are found in animal cells.

False (B)

What are the three main types of plastids?

Chloroplasts, Chromoplasts, Leucoplasts

Colorful plastids that store carotenoids are called __________.

<p>Chromoplasts</p> Signup and view all the answers

Match the following types of plastids with their characteristics:

<p>Chloroplasts = Photosynthetic plastids responsible for green color Chromoplasts = Colorful plastids storing carotenoids Leucoplasts = Colorless plastids for storage and no pigments</p> Signup and view all the answers

What is the primary function of chlorophyll found in chloroplasts?

<p>Absorbing solar energy for photosynthesis (C)</p> Signup and view all the answers

Chloroplasts can be found in animal cells.

<p>False (B)</p> Signup and view all the answers

What are the two types of pigments stored in chromoplasts?

<p>Carotenoid pigments</p> Signup and view all the answers

Leucoplasts primarily store food in the form of _____ .

<p>carbohydrates</p> Signup and view all the answers

Match the following plastids with their characteristics:

<p>Chloroplasts = Involved in photosynthesis and contain chlorophyll Chromoplasts = Synthesize and store carotenoid pigments Leucoplasts = Store food in non-photosynthetic parts of plants Chlorophyll = Green pigment essential for photosynthesis</p> Signup and view all the answers

Flashcards

Plastids

Double membrane organelles in plant cells and some protozoa that store and make food.

Chloroplasts

Photosynthetic plastids that contain chlorophyll and are responsible for photosynthesis.

Chromoplasts

Colored plastids, derived from chloroplasts, that store pigments like carotenoids.

Leucoplasts

Colorless plastids that do not contain pigments, used for storage.

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Proplastids

Colorless precursors from which plastids develop.

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What are chloroplasts?

Chloroplasts are green plastids found in plant cells that are responsible for photosynthesis.

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What makes chloroplasts unique?

Chloroplasts have a double membrane structure enclosing a matrix called stroma and thylakoids, which contain chlorophyll.

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What does chlorophyll do?

Chlorophyll is a green pigment that absorbs sunlight energy for photosynthesis.

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What are chromoplasts?

Chromoplasts are colorful plastids derived from chloroplasts that store carotenoid pigments, giving plants orange, yellow, or red colors.

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Why are leucoplasts important?

Leucoplasts are colorless plastids that store food, typically carbohydrates, in non-photosynthetic parts of plants.

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